GULF OF MEXICO 



375 



Family ECHINOLAMPADIDAE 



Echinolampas depressa Gray. 

 Conolampas sigsbei (A. Agassiz). 



Family NEOLAMPADIDAE 



Ntolampas roslellata A. Agassiz. 



Family CLYPEASTRIDAE 



Clypeaster rosaceus (Linn6). 

 Clypeaster euclastus H. L. Clark. 

 Clypeaster cyclopilus H. L. Clark. 

 Clypeaster ravenelii (A. Agassiz). 

 Clypeaster prostratus (Ravenel). 



Family FIBULARIIDAE 



Echinoryamus grandiporus Mortensen. 

 Echinocyamus macrostomus Mortensen. 



Family SCUTELLIDAE 



Mellita quinquiesperforata (Leske). 



Mellita quinquiesperforata var. quinquiesperforata (Leske). 



Mellita quinquiesperforata var. tenuis H. L. Clark. 



Mellita quinquiesperforata var. lata H. L. Clark. 



Mellita sexiesperforata (Leske). 



Encope michelini L. Agassiz. 



Family POURTALESIIDAE 



Pourtalesia miranda A. Agassiz. 



Family PALAEOPNEUSTIDAE 



Palaeopneustes cristatus A. Agassiz. 

 Archaeopneustes hystrix (A. Agassiz). 

 Linopneustes longispinus (A. Agassiz). 

 Homolampas fragilis (A. Agassiz). 

 Palaeotropus josephinae Lov^n. 



Family AEROPSIDAE 



Aceste bellidifera Wyville Thomson. 



Family HEMIASTERIDAE 

 Hemiaster expergitus Lov^n. 



Family LOVENIIDAE 

 Echinocardium laevigaster A. Agassiz. 



Family SCHIZASTERIDAE 



Schizaster orbignyanus A. Agassiz. 

 Hypselaster limicolus (A. Agassiz). 

 Moira atropos (Lamarck). 

 Agassizia excentrica A. Agassiz. 



Family 



BRISSIDAE 



Agassiz). 



Neopneustes micrasteroides (A 

 Brissopsis alta Mortensen. 

 Brissopsis atlantica Mortensen. 

 Plethotaenia spatangoides (A. Agassiz) 

 Plagiobrissus grandis (Gmelin). 

 Brissus unicoloT (Leske). 

 Meoma vtntricosa (Lamarck) . 



ASTEROIDEA 

 Family GONIOPECTINIDAE 



Goniopecten demonstrans Perrier. 

 Prionaster elegans Perrier. 



Family ASTROPECTINIDAE 



Astropecten articulatus (Say). 



Astropecten articulatus var. articulatus (Say). 



Astropecten articulatus var. valenciennesi Miiller and 



Troschel. 

 Astropecten cingulatus Sladen. 

 Psilaster squameus H. L. Clark. 

 Plulonaster bifrons (Wyville Thomson). 

 Plutonaster intermedius (Perrier). 

 Persephonaster pulcher (Perrier). 

 Persephonaster echinulatus H. L. Clark. 

 Persephonaster spinidosus H. L. Clark. 

 Tethyaster grandis (Verrill). 

 Tethyaster vestita (Say).' 



Family LUIDIIDAE 



Luidia senegalensis Mtiller and Troschel. 



Luidia barbadensis Perrier. 



Luidia variegala Perrier. 



Luidia convexiuscula Perrier. 



Luidia alternata (Say). 



Luidia clathrata (Say) .' 



Family BENTHOPECTINIDAE 



Benthopecten spinosus Verrill. 

 Cheir aster coronatus (Perrier). 

 Cheir aster mi'abilis (Perrier). 

 Luidiaater mixtus (Verrill). 



Family ODONTASTERIDAE 



Odontasler hispidus Verrill. 



Family GONIASTERIDAE 



Pseudar chaster concinnus Verrill. 

 Pseudar chaster parelii (Duben and Koren). 

 Pseudar chaster ordinatus Verrill. 

 Paragonaster grandis H. L. Clark. 

 Mediaster pedicellaris (Perrier). 

 Tessellaster notabilis H. L. Clark. 

 Ceramaster grenadensis (Perrier). 

 Nymphaster ternalis (Perrier). 

 Nymphaster arenatus (Perrier). 

 Nymphaster subspinosus (Perrier). 

 Blakiaster conicus Perrier. 

 Rosaster alexandri (Perrier). 

 Peltaster hebes Verrill. 

 Goniaster cuspidatus Gray. 

 Plinthaster dentatus (Perrier). 

 Plinthaster productus A. H. Clark. 

 Litonaster intermedius (Perrier). 

 Astroceramis brachyactis H. L. Clark. 



« Aiteriat latUa Say, Jour. Acad. Nat. Sci. Philadelphia, vol. 5, p. 143 

 1825. 



• Asteriaa clathrata Say, 1825, is preoccupied by AsUriai clalkrala Pennant, 

 1777, but nothing would be gained by displacing this well established name. 



